Título:	Moderate-intensity exercise with blood flow restriction on cardiopulmonary kinetics and efficiency during a subsequent high-intensity exercise in young women : a cross-sectional study
Autor(es):	Borges, Robson Fernando Chiappa, Gaspar Rogério Muller, Paulo T. Lima, Alexandra Correa Gervazoni Balbuena de Cahalin, Lawrence Patrick Cipriano, Graziella França Bernardelli Cipriano Júnior, Gerson
ORCID:	http://orcid.org/0000-0002-0440-8404
Afiliação do autor:	University of Brasilia, Physical Education Graduate Program Graduate Program in Human Movement and Rehabilitation of Evangelical University of Goiás Federal University of Mato Grosso do Sul, Laboratory of Respiratory Pathophysiology (LAFIR) University of Brasilia, Health Sciences and Technologies Graduate Program University of Miami Miller School of Medicine, Department of Physical Therapy, Coral Gables, FL University of Brasilia, Health Sciences and Technologies Graduate Program University of Miami Miller School of Medicine, Department of Physical Therapy, Coral Gables, FL University of Brasilia, Physical Education Graduate Program University of Brasilia, Health Sciences and Technologies Graduate Program University of Miami Miller School of Medicine, Department of Physical Therapy, Coral Gables, FL
Assunto:	Exercícios físicos Texte de esforço Oixgênio Cinética
Data de publicação:	2021
Editora:	Wolters Kluwer Health, Inc.
Referência:	BORGES, Robson F. et al. Moderate-intensity exercise with blood flow restriction on cardiopulmonary kinetics and efficiency during a subsequent high-intensity exercise in young women: a cross-sectional study. Medicine, [S. l.], v. 100, 31, e25368, 06 ago. 2021. DOI: http://dx.doi.org/10.1097/MD.0000000000025368. Disponível em: https://journals.lww.com/md-journal/fulltext/2021/08060/moderate_intensity_exercise_with_blood_flow.1.aspx. Acesso em: 23 maio 2024.
Abstract:	Blood flow restriction (BFR) training applied prior to a subsequent exercise has been used as a method to induce changes in oxygen uptake pulmonary kinetics (V_ O2P) and exercise performance. However, the effects of a moderate-intensity training associated with BFR on a subsequent high-intensity exercise on V_ O2P and cardiac output (QT) kinetics, exercise tolerance, and efficiency remain unknown. This prospective physiologic study was performed at the Exercise Physiology Lab, University of Brasilia. Ten healthy females (mean ±SD values: age=21.3±2.2 years; height=1.6±0.07m, and weight=55.6±8.8 kg) underwent moderate-intensity training associated with or without BFR for 6 minutes prior to a maximal high-intensity exercise bout. V_ O2P, heart rate, and QT kinetics and gross efficiency were obtained during the high-intensity constant workload exercise test. No differences were observed in V_ O2P, heart rate, and QT kinetics in the subsequent high-intensity exercise following BFR training. However, exercise tolerance and gross efficiency were significantly greater after BFR (220±45 vs 136±30 seconds; P<.05, and 32.8±6.3 vs 27.1±5.4%; P<.05, respectively), which also resulted in lower oxygen cost (1382±227 vs 1695±305mLmin–1 ). We concluded that moderate-intensity BFR training implemented prior to a high-intensity protocol did not accelerate subsequent V_ O2P and QT kinetics, but it has the potential to improve both exercise tolerance and work efficiency at high workloads. Abbreviations: BFR = blood flow restriction, CWR = constant work rate, GE = gross efficiency, GET = gas exchange threshold, HR = heart rate, PE = priming exercise, QT = cardiac output kinetics, RIPC = remote ischemic preconditioning, VO_ 2P = pulmonary O2 uptake, VO_ 2peak = VO_ 2P at peak exercise.
Unidade Acadêmica:	Faculdade UnB Ceilândia (FCE) Curso de Fisioterapia (FCE-FISIO)
Programa de pós-graduação:	Programa de Pós-Graduação em Ciências e Tecnologias em Saúde
Licença:	This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
DOI:	http://dx.doi.org/10.1097/MD.0000000000025368
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